{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:MMUYUYFWOQCF6ZGLOLUEW5YY4D","short_pith_number":"pith:MMUYUYFW","canonical_record":{"source":{"id":"1311.0529","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.HC","submitted_at":"2013-11-03T21:05:45Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"3427edfcc1d74907c954335b05d01a7c3192e8113aa99c29d69667073dda0986","abstract_canon_sha256":"4717ccf46b938216233a7cd531ce4294931bdf2192e73467b781e4867a839dd1"},"schema_version":"1.0"},"canonical_sha256":"63298a60b674045f64cb72e84b7718e0d3e9250cf36dca310642a36782d922db","source":{"kind":"arxiv","id":"1311.0529","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.0529","created_at":"2026-05-18T03:08:05Z"},{"alias_kind":"arxiv_version","alias_value":"1311.0529v1","created_at":"2026-05-18T03:08:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.0529","created_at":"2026-05-18T03:08:05Z"},{"alias_kind":"pith_short_12","alias_value":"MMUYUYFWOQCF","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MMUYUYFWOQCF6ZGL","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MMUYUYFW","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:MMUYUYFWOQCF6ZGLOLUEW5YY4D","target":"record","payload":{"canonical_record":{"source":{"id":"1311.0529","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.HC","submitted_at":"2013-11-03T21:05:45Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"3427edfcc1d74907c954335b05d01a7c3192e8113aa99c29d69667073dda0986","abstract_canon_sha256":"4717ccf46b938216233a7cd531ce4294931bdf2192e73467b781e4867a839dd1"},"schema_version":"1.0"},"canonical_sha256":"63298a60b674045f64cb72e84b7718e0d3e9250cf36dca310642a36782d922db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:08:05.609013Z","signature_b64":"ZE9TfSOPyELHuWYhl/P2ogBa/WhaBbhNI4FLC+Qq+oWZuGZPgOQeRlPEc91ZMm1TvPjz51enEGFCeAd2ndmTDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63298a60b674045f64cb72e84b7718e0d3e9250cf36dca310642a36782d922db","last_reissued_at":"2026-05-18T03:08:05.608354Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:08:05.608354Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.0529","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:08:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zySr2ajYXUBW+eB6eOEeIUSPvZ5CyWnsTXfRrVSE+D06WgUyLrtvIuC8pSQ4t8OQSbXTXQvRIp26PABQRzu0Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T22:00:48.715786Z"},"content_sha256":"9a0e951f6304ad065e3dcb1f6a2175b685a043f69064d334ce51a8fdd87e4ac0","schema_version":"1.0","event_id":"sha256:9a0e951f6304ad065e3dcb1f6a2175b685a043f69064d334ce51a8fdd87e4ac0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:MMUYUYFWOQCF6ZGLOLUEW5YY4D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Networks of Innovation in 3D Printing","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":["cs.SI"],"primary_cat":"cs.HC","authors_text":"Harris Kyriakou, Jeffrey V. Nickerson, Steven Englehardt","submitted_at":"2013-11-03T21:05:45Z","abstract_excerpt":"Innovation inside companies is difficult to see. But an emerging online community of inventors who publicly post 3D CAD drawings of their work provide a way to observe - and perhaps amplify - innovation. In this paper we analyze the network structure of Thingiverse, a website oriented toward 3D printing. This form of printing blurs the line between creating information and manufacturing objects: drawings can be sent to devices that build 3D objects out of many materials, including resin, ceramics, and metal. As an exploratory study, we analyzed the structure of Thingiverse links. Our results s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.0529","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:08:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KPOLpnhJxT8fLhWB51VfAMtoEEuRtUdZfaY1qSOhho0l834JFt76KOsRCR2H5NJoZ1IuRbkdcufG/tQeKzwECw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T22:00:48.716120Z"},"content_sha256":"cdcf1c75b76b12ceb00e296be67c9f48fec5c4d52bf45529d195c51e5c38b2c1","schema_version":"1.0","event_id":"sha256:cdcf1c75b76b12ceb00e296be67c9f48fec5c4d52bf45529d195c51e5c38b2c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MMUYUYFWOQCF6ZGLOLUEW5YY4D/bundle.json","state_url":"https://pith.science/pith/MMUYUYFWOQCF6ZGLOLUEW5YY4D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MMUYUYFWOQCF6ZGLOLUEW5YY4D/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-27T22:00:48Z","links":{"resolver":"https://pith.science/pith/MMUYUYFWOQCF6ZGLOLUEW5YY4D","bundle":"https://pith.science/pith/MMUYUYFWOQCF6ZGLOLUEW5YY4D/bundle.json","state":"https://pith.science/pith/MMUYUYFWOQCF6ZGLOLUEW5YY4D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MMUYUYFWOQCF6ZGLOLUEW5YY4D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MMUYUYFWOQCF6ZGLOLUEW5YY4D","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4717ccf46b938216233a7cd531ce4294931bdf2192e73467b781e4867a839dd1","cross_cats_sorted":["cs.SI"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.HC","submitted_at":"2013-11-03T21:05:45Z","title_canon_sha256":"3427edfcc1d74907c954335b05d01a7c3192e8113aa99c29d69667073dda0986"},"schema_version":"1.0","source":{"id":"1311.0529","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.0529","created_at":"2026-05-18T03:08:05Z"},{"alias_kind":"arxiv_version","alias_value":"1311.0529v1","created_at":"2026-05-18T03:08:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.0529","created_at":"2026-05-18T03:08:05Z"},{"alias_kind":"pith_short_12","alias_value":"MMUYUYFWOQCF","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MMUYUYFWOQCF6ZGL","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MMUYUYFW","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:cdcf1c75b76b12ceb00e296be67c9f48fec5c4d52bf45529d195c51e5c38b2c1","target":"graph","created_at":"2026-05-18T03:08:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Innovation inside companies is difficult to see. But an emerging online community of inventors who publicly post 3D CAD drawings of their work provide a way to observe - and perhaps amplify - innovation. In this paper we analyze the network structure of Thingiverse, a website oriented toward 3D printing. This form of printing blurs the line between creating information and manufacturing objects: drawings can be sent to devices that build 3D objects out of many materials, including resin, ceramics, and metal. As an exploratory study, we analyzed the structure of Thingiverse links. Our results s","authors_text":"Harris Kyriakou, Jeffrey V. Nickerson, Steven Englehardt","cross_cats":["cs.SI"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.HC","submitted_at":"2013-11-03T21:05:45Z","title":"Networks of Innovation in 3D Printing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.0529","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9a0e951f6304ad065e3dcb1f6a2175b685a043f69064d334ce51a8fdd87e4ac0","target":"record","created_at":"2026-05-18T03:08:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4717ccf46b938216233a7cd531ce4294931bdf2192e73467b781e4867a839dd1","cross_cats_sorted":["cs.SI"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.HC","submitted_at":"2013-11-03T21:05:45Z","title_canon_sha256":"3427edfcc1d74907c954335b05d01a7c3192e8113aa99c29d69667073dda0986"},"schema_version":"1.0","source":{"id":"1311.0529","kind":"arxiv","version":1}},"canonical_sha256":"63298a60b674045f64cb72e84b7718e0d3e9250cf36dca310642a36782d922db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63298a60b674045f64cb72e84b7718e0d3e9250cf36dca310642a36782d922db","first_computed_at":"2026-05-18T03:08:05.608354Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:08:05.608354Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZE9TfSOPyELHuWYhl/P2ogBa/WhaBbhNI4FLC+Qq+oWZuGZPgOQeRlPEc91ZMm1TvPjz51enEGFCeAd2ndmTDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:08:05.609013Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.0529","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a0e951f6304ad065e3dcb1f6a2175b685a043f69064d334ce51a8fdd87e4ac0","sha256:cdcf1c75b76b12ceb00e296be67c9f48fec5c4d52bf45529d195c51e5c38b2c1"],"state_sha256":"1ba17681f92e7255e12d0070ed3fd1e6c7d91560d64776fcb165bc1f4e659c02"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hvD7Hr+e4jccDJfM7skEAHj0uP64JT11WOpAKzVrz83IE3WtQqNN3aKpWK+YRHmoBRZNR19xz0EI4AaM1rHDCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T22:00:48.717972Z","bundle_sha256":"eaeef9088bd0348b9af62dfeef40e6a447a6e44ad55db57a865e00bbc783aa2e"}}